Common Symptoms
- Check Engine Light illuminated
- Rough or unstable idle
- Hesitation or surge during acceleration
- Poor fuel economy
- Engine may enter reduced power mode
Most Likely Root Causes
- Failed EGR position sensor
- Damaged or corroded wiring to EGR sensor
- Short circuit in EGR sensor harness
- Failed EGR valve assembly
- Corroded or damaged sensor connector
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Component Location
The EGR position sensor is typically mounted on or integrated into the EGR valve assembly, located near the intake manifold.
Manufacturer Notes
Some manufacturers use differential pressure sensors instead of position sensors for EGR monitoring on certain models.
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